This book systematically studies the major research issues in WDM (Wavelength Division Multiplexing) optical networks. The first part of the book establishes the fundamental concepts and principles of WDM networks, providing a foundational understanding for readers. The second part delves into advanced and research issues, offering comprehensive discussions on topics such as routing and wavelength assignment, QoS multicast routing, the design of logical topologies, and the placement of wavelength converters. The authors leverage their extensive experience in computer networks and network optimization to present detailed analyses, including mathematical formulations and solutions for each problem discussed.

The book is presented as a comprehensive study of WDM optical networks, drawing on the authors' significant experience in computer networks and network optimization. It aims to cover difficult issues in a thorough manner, providing background, mathematical formulation, and solutions for each problem. The structure divides the content into foundational principles and advanced research topics, suggesting a text suitable for those seeking in-depth knowledge of WDM network challenges.